Claudia Sahm has revived a basic Fed question: 2% of what? Ahead of the next press conference, she asked whether officials, including Kevin Warsh, explicitly me

Claudia Sahm has revived a basic Fed question: 2% of what? Ahead of the next press conference, she asked whether officials, including Kevin Warsh, explicitly mean PCE inflation—the latest sign debate over the Fed’s target framework is still unresolved.